Binder and securing-joint therefor, and for other purposes.



H.G.BUCHAN. I BINDER ANDSECURINGJOINT THEREFOR, AND FOR OTHER PURPOSES.

- APPLICATION FILED sEPT.2s. 191a. 1,280,154.

Patented; Oct. 1

matinee.

no STATES P2:

HUGH GELLROY BUCHAN, OF WOODBRIDGE, NEW JERSEY.

BINDER AND SECURING-JOINT THEREFOR, AND FOR OTHER PURPOSES.

Specification of Letters Patent.

Patented (Oct. 11, was.

Application filed September 26, 1913. Serial No. 791,964.

To allrwhom it may concern:

Be it. known that I, HUGH GELLRoY BUoHAN, of'Woodbridge, in the county of Middlesex, State of New Jersey, have in-' vented certain new and useful Improvements in Binders and Securing-Joints Therefor,

and forother purposes, ofwhich the following is a specification. 4

The object of my invention is :-first, to provide a cheap, simple and strong securingjoint for use in mechanically, and without the aid of adhesives, securing-strips or sheets of leather or other flexible fabrics to the edges of metallic or similar strips or straight-edges, which strips or straightedges are usually but not necessarily, (when used in loose leaf binders) of substantially segmental form in cross-section; and, second,

to provided bindings of all sorts, having a metallic or partially metallic back-piece, (whether such binders are of the form known as loose -leaf binders or are a permanent binding), with such mechanical securing or looking joint, by the use of which the side-pieces or binding-boardsof the binder may be easily and quickly secured to the back-piece or pieces, in such manner as to be absolutely safe against any but intentional separation therefrom.

My said invention consists, broadly, in a discovery of the fact, and practical applications thereof, that whena flexible fabric is doubled upon itself, and the fold thereof inserted through a narrow slit left in a coil formed upon the edge of a metallic or similar straight-edge, and a rod or other binding key-piece is inserted in the central portion of the fold; and the endof the fabric then drawn around and over the coil, that when properly made, the greater the strain brought upon suohfold the greater will be the grip between' the straight-edge and fabric at the joint thus formed; and that if the metal is of suflicient strength the joint thus made betweenthe fabric and the coil upon the straight-edge, cannot be broken by strain exerted thereon between the parts, ex-

cept by fracture of the. straight-edge or fabric; and this without the use of any adhesives whatsoever.

In the improved form of bookbinding shown in the drawing hereof, my said invention is'shown in one of its many uses to which the said joint may be applied, as forming part of the construction, of a particular form of binder adapted to be used for the binding together and holding of a body of loose leaves, or a pamphlet, (such,

for instance, as a telephone directory),

which pamphlet or body of leaves while held securely position in the stiff-back binder of my invention herein shown, may be instantaneously removed, and as instantane ously reinserted therein; but which will at all times be held firmly in place in the binding against any accidental or unintentional removal or displacement thereof.

' My said invention is fully shown and described in the following specification of which the accompanying drawing forms a part, wherein similar letters or numerals of reference designate like or equivalent parts, wherever found throughout the several -views, and in which Figure 1 is a view from the-bottom taken in perspective, partially in section, of a vblnder, embodylng my broad invention in one of the many forms in which I may make the same.

Fig. 2 is an end view from the bottom in cross-section of such binder, taken on the line aa of Fig. 1, showing the pamphlet or bundleof loose leaves in position, and

the back strained backward into the a open posltion, to allow of the easy insertion or removal of such pamphlet or bundle of leaves. Fig. 3 is a view in detail on an enlarged scale, taken on the same sectional line as Fig. 2, of one of the two securing-joints, and adjacent parts shown in such Fig. 2.

Fig. 4; is a front view in detail looking from the right and toward the left of Fig. 1, of one of the three back-springs shown or indicated in Fig. 1, having at the edges thereof the coil forming a portion of my improved, fabric securing-joint, as the same sition.

Referring to the drawing v The reference letters A and A, designate the binding or cover-boards of my improved binder, and B the pamphlet or body of loosev 2c the side cover-boards A and A binder, two flexible back securing-strips 3 of i 40 etc.

, portion 4 may if desired, form theentire inleaves to be bound therein; while 0, C, and C", designate the resilient sprin or springs forming a portion of the back 0 the binder.

Such resilient spring may in some cases ex- 5 tend the entire length of the binder, but is usually and preferably divided into a plurality of narrow springs as indicated by C, C and C" in Fig. 1. These back-springs are usually of substantialy the segmental form in cross-section shown, and are each before tempering provided at the straightedges of the piece of thin sheet-metal out of which they are formed, with an inwardly turned securing coil portion 1, between which and the inner surface of the adjacent side-wall of such spring there is left the narrow securing-slit 2. r

In order to firmly secure such metallicresilient back-spring or back-piece to each of of the leather or other suitable stout flexible fabric of suflicient len h to extend longitudinally along the entire ack of the binder, are each folded upon itself, and the fold-or loop 8 v inserted in the securing-coils2 of the springs Q, Q, and C, and after the insertion of a binding key-piece 9 within such fold and co1ls, as shown in Figs, 1, 2, 3 and 5, the two 80 plies of such folded fabric securing-strip are then drawn out, under, around and over 'such securing-coil, and both plies, or at least the outer, free edge portion 4 of the outer-- ply (Figs. 2 and 3) firmly secured to their 85 respective adjacent cover-boards A and A,

respectively; as clearly shown in Figs. 1

2 and 3, in any desired manner; usually by cementing the same thereto by any suitable adhesive cementing material, such as glue, Such backwardly extending securing side covering surface ofits cover-board, but usually extends only to the point indicated b 5 in Figs. 1, 2 and 3, and a second sheet 46 piece 5 is glued or cemented over such strip 4. and over the entire inside surface of, the cover-boa rds,' as shown in Fig. 2.

The binding-cover so formed usually is provided with an outer coveringsheet 6 of 50 leather, canvas Or other suitable flexible fabric, firmly secured to the cover-boards in any desired manner, (usually by .glue or other suitable strongly adhesive material) formed of a single piece, which extends from the top 66 cover-board A around and over the back spring or springs C, C and C, as clearly shown in Fig. 2; and a stiflenin piece of any desired-material 7 may if esired, be placed within such back as indicated in Fig. 2.

cross-section as is the coil, so as to force the fold of the fabric-strip out into contact with and such securing-key or rod 9,-is usually provided at one end, usually adjacent to the slotted head 11, with a male-screw thread formed on a short portion of the rod slightly larger than the main or body portion of such rod, which male-thread coacts with a femalethread formed in the securing-coil 1, to prevent accidental displacement of the rod; and the fabric 3 at the point indicated by the line 13, in Fig. 5, is cut away, so as not to cover and interfere with the screw-joint thus formed. 1

In some cases where it is not desired to remove such securing-key or rod 9, the same may be secured in place by swaging rivet heads upon either end, so as to permanently secure the same in position.

Fig. 5 shows myfabric securingoint in top View with the fabric 3 firmly secured thereto, in the form of a straight-edge having the securing-coil 1, which straight-edge may be secured in any desired posltion by suitable screws 8, and may be thus used in devices other than bookbinders. 1

In order to insert (or remove)the body to be bound, such as a body of loose leaves, or a pamphlet or book, magazine, telephone directory, etc., in my improved form of binder, it is only necessary to spring the cover-boards back into the position indicated in Fig. 2, with the front edges of the two coverboardsA and A abutting, when the securing back-springs C, C and C will be forced open, and the body of leaves or pamphlet B may be instantaneously removed,"

and as quickly reinserted; when, upon the release of the front edges of the coverboards of the cover from pressure, the resiliencyof the spring or springs C, C" and G, will be suflicient to firmly force the securing edges 12 of the back-piece firmly against B, with suflicient force to hold the samefirmly in position in the binder or back-piece, against any accidental or unintentional displace ment.'

I do not intend to limit'l nyself in a jointfor securing fabrics to metallic or other straight-edges, in which such straight-edgeis rovided with a narrow slitted securin coi' through which a fold of the fabric IS inserted into the coil through the slit, and

extends around back and over the coil, to a section; but. is usually of the same shape as is the cross-section of the coil;

' whole or any part of the device or devices diameter as to herein described, disclosed and claimed; and

while I prefer to form the straight-edge of suitable resilient metal, and the securing-rod also of suitable metal, the same may be of any other suitable material; andthe securing-key or rod may be of any material of suitable shape in cross-section; and many other changes and modifications in the construction herein mentioned and disclosed, may be made Without departing from the scope of my' invention.

1. A longitudinal member having a straight edge; a securing-coil of substantially cylindrical form in cross-section formed integral therewith and longitudinally thereof; a flexible-fabric folded upon itself with the fold. lying in the securingcoil; and a securing-key-piece or rod located in the fabric-fold within the securingcoil, and extending the entire length of such fold and coil, of the same substantially circular contour as the securing-coil but of such fit tightly within the fabricfold. I '2. A longitudinal member having a straight edge; a securing-coil of substanin CIOSS-SGCUOH,

tially cylindrical form formed integral therewith and longitudinally thereof; a flexible-fabric folded upon itself with the fold lying in the securingcoil; and a solid securing-key-piece or rod located in the fabric-fold within the securing-coil andlocked in such coil against accidental displacement, which is of substantially the same, circular contour as the securing-coil but of such diameter as to fit tightly within the fabric-fold.

3. A longitudinal member having a substantially circular cylindrical hollow securing coilformed integral therewith and longitudinally thereof; a fiexible-fabricfolded upon itself with the fold lying in the securing-coil; and a solid securing-key-plece or rod located in the fabric-foldwithin the securing-coil and extending through the length thereof.

A. A longitudinal member W having a straight-edge; asecuring-coil formed integral with the longitudinal edge of the straight-edge in such manner that a narrow slit is left between the outer edge of the coil and the abutting inner face or surface of. the

main body portion of the-straight-edge; a

flexible-fabric folded upon itself with the fold lying in the securing-coil; while the' main body, portion of such fabric extends out through the slit; and a rigid securing key-piece or rod located in the fabric-fold within the securing-coil.

5. A longitudinal member having a straight-edge; a securing-coil of substanedge;va flexible-fabric folded upon itself v with the fold lying in the securing-coil,

while the two plies of the main body portion of such fabric extend out through the slit,

and one or both plies are permanently drawn around and over the securing-coil; and a securing-key piece in the form of a rigidrod located within the fabric-fold in the securing-coil.

6. A longitudinal member having a straight-edge; a securing-coil formed integral with and longitudinally of the straightedge in such manner that a narrow slit is left between the outer edge of the coil and the abutting inner'face or surface of the-main body-portion of the straight-edge; a flexible fabric having its outer free end folded upon itself, with the fold lying in the securingcoil, with the main body portion extending out through the slit, and being drawn back tightly over the periphery of the coil; and a securing key-piece or rod lying within the fabric-fold and securing-coil, and extending the length thereof. I

7. A back-piece securing-spring for binders, formed of resilient spring metal, bent into substantially segmental form and provided at each of the securing-edges with an slit; a piece of folded fabric with the fold,

entering such securing-coil through said slit; and a locking member within said fold .to secure it within the coil..

8. A back-piece s'ecuringspring for binders, formed of resilient spring metal, bentinto substantially segmental form, and provided at each of the securing-edges with an integral substantially cylindrical hollow securing-coil, formed by turning the metal inward so as to leave a slit between the outer wardly projecting securing bindingedge,

each in the form of acoil having a slit between its edge and the abutting faceor surface of the main body portion of the backpiece, each of which coils is integrally formed at a longitudinal edge'of such backpiece; cover-boards; a securing-strip of flexible-fabric for each of the securing-coils having a fold thereof lying in its coil with the two plies thereof extending out through the slit; a securing-[key-piece or rod located within each fabric-fold and securing-coil and extending the width of the binder; and means for securing the fabric-securing-strips to their respective cover-boards.

10. In a 'binder, a back-piece having forwardly projecting securing binding-edges, each in the form of a coil having a slit between its edge and the abutting face or surface of the main body portion of the backpiece, each of which coils is integrally formed at a longitudinal edge of back-piece; a securing-strip of flexible-fabric for each of the securing-coils having a fold thereof lying in its coil with the two plies thereof extending out through the slit; a securing-key-piece rod located within each fabric-fold and its securing-coil and-extending the Width of the binder; a front 'and a back cover-board;

means for securing one of the fabricgsecuring strips to the front and the other to the back cover-board; and an outer coveringsheet of flexible fabric or material secured to the front and back cover-boards and exteriorly covering the back-piece.

11. In a binder;' a plurality of securing back-pieces each having securing edges facing one another, which edges are each in the form of a coil formed integral with the backpiece in such manner as to leave a narrow slit between the edge of the coil and the adjacent abutting face or surface of the main body portion of the back-piece, which backpieces are arranged end to end with their securing-coils in alinement; cover-boards; a securing-strip of flexible-fabric for eachof the cover-boards securedthereto, and having a fold thereof lying in the securing-coils on that side of the several back-pieces, with the two plies thereof extending out through the slit; and a securing-key-piece or rod lying within the fabric-fold within the securing coils on each side of all the back pieces.

' main body portion of such back-piece, which back-pieces are arranged end to end with their securing-coils in alinement; coverboards; a securing-strip of flexible fabric for each of the cover-boards secured thereto, and having a fold thereof lying in the securing-coils on one side of the several backpieces, with the two plies thereof extending out through the slit and being drawnaround and over the periphery of the securing-coil whether the binder be in the closed or open position; and a rigid securing-key-piece or rod lying within each of the fabric-foldswithin the securing-coils on each side of all the several back-pieces.

13. In a binder, a plurality of back-pieces in the form of segments bent up from springresilient-metal, each having securing edges facing one another, which edges are each in the form of a coil formed integral with the back-piece in such manner as to leave a narrow slit between the edge of the coil and the adjacent abutting surface or face of the main body portion of such back-piece, which backpieces are arranged end to end with their securing-coils in alignment; cover-boards; a securing-strip of flexible-fabric for each of the cover-boards secured thereto, and having a fold thereof lying in the securing-coils on one side of the several back-pieces, with the two plies thereofextending'out through the slit; and a securing-key-piece in the form of a rigid rod extending through each fabricfold and its line of securing-coils, and being secured in place against accidental displace-- ment by a screw-joint between such rod and the securing coil.

Signed at the borough of Manhattan, city,

county and State of New York, this eighteenth dayof September, 1913. HUGH GELLROY BUCHAN.

Witnesses:

CLARENCE LADD-DAVIS, MAXWEIL WAGNER. 

